Remarkable thermal conductivity enhancement in Ag—decorated graphene nanocomposites based nanofluid by laser liquid solid interaction in ethylene glycol

Mbambo, M. C.; Khamlich, S.; Khamliche, T.; Moodley, M. K.; Kaviyarasu, K.; Madiba, I. G.; Madito, M. J.; Khenfouch, M.; Kennedy, J.; Henini, M.; Manikandan, E.; Maaza, M.

Abstract

We report on the synthesis and enhanced thermal conductivity of stable Ag-decorated 2-D graphene nanocomposite in ethylene glycol based nanofluid by laser liquid solid interaction. A surfactant free nanofluid of Ag nanoparticles anchored onto the 2-D graphene sheets were synthesized using a two-step laser liquid solid interaction approach. In order to understand a pulsed Nd:YAG laser at the fundamental frequency (λ = 1,064 nm) to ablate Ag and graphite composite target submerged in ethylene glycol (EG) to form AgNPs decorated 2-D GNs-EG based nanofluid. From a heat transfer point of view, it was observed that the thermal conductivity of this stable Ag-graphene/EG is significantly enhanced by a factor of about 32.3%; this is highest reported value for a graphene based nanofluid.

Citation

Mbambo, M. C., Khamlich, S., Khamliche, T., Moodley, M. K., Kaviyarasu, K., Madiba, I. G., …Maaza, M. (2020). Remarkable thermal conductivity enhancement in Ag—decorated graphene nanocomposites based nanofluid by laser liquid solid interaction in ethylene glycol. Scientific Reports, 10, Article 10982. https://doi.org/10.1038/s41598-020-67418-3

• Journal Article Type: Article
• Acceptance Date: Jun 10, 2020
• Online Publication Date: Jul 3, 2020
• Publication Date: 2020-12
• Deposit Date: Jul 3, 2020
• Publicly Available Date: Jul 7, 2020
• Journal: Scientific Reports
• Electronic ISSN: 2045-2322
• Peer Reviewed: Peer Reviewed
• Volume: 10
• Article Number: 10982
• DOI: https://doi.org/10.1038/s41598-020-67418-3
• Keywords: Multidisciplinary
• Public URL: https://nottingham-repository.worktribe.com/output/4673860
• Publisher URL: https://www.nature.com/articles/s41598-020-67418-3
• Additional Information: Received: 9 January 2020; Accepted: 1 June 2020; First Online: 3 July 2020; : The authors declare no competing financial interest.